Former actor Aur??lie Wynn posted on Facebook on Thursday that she was pinned down and raped by Westwick at a home he was renting in Los Angeles in the early hours of one morning in July 2014.

In response, Westwick tweeted on Friday morning that he had "absolutely not" raped anyone and would be working with authorities to clear his name.

"It is disheartening and sad to me that as a result of two unverified and provably untrue social media claims, there are some in this environment who could ever conclude I have had anything to do with such vile and horrific conduct," he wrote.

Wynn said she left the acting industry after her encounter with Westwick and she was speaking up to reinforce Cohen's allegations.

She said she was invited to his house by a friend who was dating his roommate, a cast member on Glee.

"We all hung out until 5am, sun was starting to rise since it was summer so we all decided to get a few hours of shut eye since we all had events and things to do the next day and there are plenty of bedrooms," she wrote.

"And like Kristina, I said no and he pushed me face down and was powerless under his weight. I was wearing a one piece bathing suit that he ripped, I was in complete shock, I am also very tiny.

"When it was over I got my cellphone and found that the girl that had invited me had left or got kicked out. I had terrible service in the estate without access to the wifi and had to get another friend to get me an Uber out of there while Ed was passed out. The house is so big I took a video of my experience getting out of the house since it's literally a maze."

She said that, at the time, she was seeing Glee star Mark Salling, who has since been convicted of child pornography offences. She alleged that Salling pretended not to know Westwick, "then blamed me for it and broke it off with me".